Abstract
This paper addresses the ambiguity of radar altimetry related to the statistical nature of the Earth's surface roughness. A hypothetic altimetry method, which provides a simple way to quantify the measures of ambiguity, is proposed. Cramer-Rao lower bounds on the variances of estimates for the mean altitude and root-mean-square height of the sea surface are suggested as such quantitative measures. The accuracy of some types of air- and spaceborne radar altimeters is numerically analyzed against the derived lower bounds.
Original language | English |
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Pages (from-to) | 3232-3236 |
Number of pages | 5 |
Journal | IEICE Transactions on Communications |
Volume | E90-B |
Issue number | 11 |
DOIs | |
Publication status | Published - 2007 |
All Science Journal Classification (ASJC) codes
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering